;(function () {
    const svg = `
<symbol id="fold" viewBox="0 0 32 32" version="1.1">
      <path d="M8,8V1H31V24H24M1 8H24V31H1zM6 20H18z" fill="none" stroke="currentcolor" stroke-width="2" />
</symbol>
`
    let container = document.getElementById('lepton-svgs')
    if (container) {
        container.insertAdjacentHTML('beforeend', svg)
    } else {
        const svgContainer = '<svg id="lepton-svgs" style="display: none;">' + svg + '</svg>'
        document.body.insertAdjacentHTML('afterbegin', svgContainer)
    }
})()
